501223445 has 8 divisors (see below), whose sum is σ = 601683000. Its totient is φ = 400835520.

The previous prime is 501223399. The next prime is 501223447. The reversal of 501223445 is 544322105.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 106048804 + 395174641 = 10298^2 + 19879^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 501223445 - 2⁶ = 501223381 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501223447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1070 + ... + 31679.

It is an arithmetic number, because the mean of its divisors is an integer number (75210375).

Almost surely, 2^501223445 is an apocalyptic number.

It is an amenable number.

501223445 is a deficient number, since it is larger than the sum of its proper divisors (100459555).

501223445 is a wasteful number, since it uses less digits than its factorization.

501223445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35815.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 501223445 is about 22388.0201223780. The cubic root of 501223445 is about 794.3473646496.

The spelling of 501223445 in words is "five hundred one million, two hundred twenty-three thousand, four hundred forty-five".